Fody 

Extensible tool for weaving .net assemblies.

Add property notification to all classes that implement INotifyPropertyChanged.

Configure async code's ConfigureAwait at a global level.

Fody add-in to decorate arbitrary methods to run code before and after invocation.

Adds a module initializer to an assembly.

Add null checks.

Adds basic timing to methods.

Generate Equals, GetHashCode and operator methods from properties for classes decorated with an [Equals] Attribute.

Helpers for Fody.

Simplifies logging through a static helper class and some IL manipulation.

Fody add-in for changing all members to virtual.

Inject arbitrary IL code at compile time.

Injects an empty constructor into classes.

Generate ToString method from public properties.

Allows a more expressive use of the ObsoleteAttribute.

NuGet packaging Fody repositories

Add property notification to all classes that implement INotifyPropertyChanging.

Converts all JetBrains ReSharper code annotations attributes to External Annotations, so you can provide R# annotations to 3rd parties but don't need to deploy JetBrainsAnnotations.dll.

Fody add-in that helps with implementing IDisposable.

Fody add-in for validation in XAML bindings.